Stock roll



l. H. J. ELLswORTH- STOCK ROLL Filed June s, 1933 Feu-12, 193s.

ngnonnnenu, closcneoaoa Patented Feb. 12, 1935 UNITED STATES STOCK ROLL:Ira J. Ellsworth, Medford, Mass., assignor of t one-half to Edward D.Schive, Medford, Mass.

f l Application June 30, 1933, serial No. 678,503

4 claims. V(o1. 242-68) This invention relates to stock rollsparticularly of the type used in factories and textile mills for windingrelativelywide sheet material suchfas cloth, paper or rubberized fabric.An important 5 obj ect of the invention is to provide a roll havingmeans upon its circumference for electing engagement of the sheetmaterial with the roll while the roll is irl-motion and for-eliminatingappreciable slippage of the materialupon the roll.

One form of stock roll in extensive use at the present time is composedof wood having a hollow metal lcore adapted to accommodate a squaredriving shaft or mandrelv forr rotating theV roll. Such a roll is notentirely satisfactory, hower'fer, for the reason that its surface Vsponwearssmooth making it necessary when starting the winding of stockthereon to rotate the roll slowly by'hand until sufficient material hasbeen wrappednpon the roll to cause it to bind thereon without 20.slipping before the mandrel is kconnected to a source of power forwinding theremamder of the stock at regular machine speed.A Not only isthis a slow and laborious task, but wooden rolls are also objectionablebecause they do not satisfactorily withstand the rough `usage to whichthey are ordinarily subjected in service. Not infrequently after acomparatively short period of use the rolls exhibit signs of warping,cracking or splintering, whichv defects, if .they escape the timelyobservation of the attendant, result in the uneven winding-ofthe'material and often cause injury to the material. While an attempthas been made to overcome these objections by covering thesurfaces ofthe rolls with cloth facings, this has not been successful since thefacings quickly wear away lrequiring frequent replace-V ment. i Y

Stock rolls made of metal have also been used to some extent and whilepresenting a more durable construction compared with wooden rolls thesmooth polished surface of` the metal rolls have, up to this time,required the provision of some manipulative means for attaching the endof the material to the roll to avoidY excessive slippage during winding,and such means have generally proved relatively troublesome andtimeconsuming in their operation.

My invention aims to overcome the above objections by providing a stockroll of rigid construction on which the stock can be easily started atthe beginning of a winding operation. For accomplishing this purpose theroll is provided upon itsrcircumference with a multitude of smallprojecting points or tines, against which the material may be pressedwhile the roll is in motion and which cause the material to adhere tothe roll without substantial slippage.

According to the preferredvform of my invention, the roll is composed ofa metal cylinder whichv is free vfrom splitting, warping and splinter- 5ing as may occur inf the case of wooden rolls, having a removablecircumferential sleeve provided with pointsdening in effect'aseries ofroughened areas spaced about the circumference of the, sleeve thearrangement being such that as 10 the points ofthe roughenedareas-become dull and worn, the sleeve may be removed from the roll anda new one inserted to take its place. Preferably the construction issuch that Athe sleeve may be slid lengthwise `upon and in interlockingenl5 gagement with the roll to preventrelative rotation therebetween. l

y Theeinvention will V.be better understood from the following detaileddescription of a stock roll representing a preferred embodimentof thein- 20 vention, reference being had to the accompanying drawinginwhich:Y

Figure 1 is a side view of the roll in part sectional and in partelevational;

l Figure 2 is an end View of the roll of Fig. 1; lFigure 34 is aperspective View of the roll with the sleeve shown removed; v -V YFigure 4-is a fragmentary Lview of the sleeve showing the shape of theprojections constitutingl its roughened area; y

Figure 5 is a cross-section of-one end of a modiiied form of stock roll;andv v Figure 6 is a transverse cross-section of the roll taken on theline 6 6 of Fig. 5.

Referring to Fig. 1, the stock roll R. comprises a metal windingcylinder 1 provided with an outer circumferential sleeve 2 snuglyencircling the same. Extending` longitudinally through the center of thecylinder is a hollow metal tube 3 of square Ymoss-section having itsends passing through and supported within openings in end plates 4;The'ends of the metal tube are welded to the end plates and the endplatesV are in turn welded to the interior of the cylinder 1, Forsupporting lthe intermediate portion of the tube 3 there' is provided vaseries of spacer plates 5 surrounding the tube and arranged at spacedintervals upon'the'interior of the cylinder, to which they are suitablywelded. The tube 3 is of a shape correspondingl to but slightly largerthan the mandrel which is adapted to be passed therethrough when theroll is placed in the machine and the tube acts as a guide forfacilitating the introduction of the mandrel through the'roll. Themandrel customarily has a pulley mounted upon one of its ends forengagement with a driving belt for rotating the roll.

Extending lengthwise along the circumference of the cylinder l andYcompletely throughV its wall y is a straight slot 8. The peripheralportions of the end plates 4 and the spacer platesk 5 adjacent this slotare formed with notches 9, as best shown in Figs. 2 and 3, so Vas toafford a clearance pas- Y sage through the cylinder immediately belowthe slot.

The sleeve 2 is made of a section of relatively thin metal rolled intocylindrical shape to embrace the cylinder 1 and having its ends broughttogether and then reversely bent so as to YformV hooks engaging theopposite Wallsof the slot 8;Y

These hooks together in cross-sectionrdene'a T- shaped key member whichpasses through the slot and locks the sleeve to the cylinder. VBy thisYconstruction the sleeve is prevented fromturning upon the cylinder butmay be removed from the cylinder and replaced thereon by sliding itlongitudinally along the cylinder.; as indicated in Fig.3." Y

Upon a perfectly smooth metal roll, stock cannot be Vsatisfactorilywound because Vthe inner convolution of the material has atendency toslipl upon the almost'frictionless surface'of the roll. Therefore inthepast when material has been wound upon metal rolls it has been thecustomary practice to provide means for locking the end of the materialtothe rolll before starting to wind.

This ordinarilyrequires so much time that Vthel machine withwhich theroll is associated, as for example a textile machine, must vbe 'stoppedto prevent an excessive amount'of material from feeding out of themachine during the periodV in which the end of the material is beingattached to the roll. According to my invention I am enabled to avoidinterrupting the operation of the machine whilechanging over lfrom oneroll to another by providingV means for,y quickly engaging the end ofthe material with the'roll during its rotation To this end the -sleeve2Y is provided with a series of roughened. areas 11 spaced about itscircumference, each area being composed'of a multitude of upstandingpoints 10 arranged Vin rowsextending lengthwise of the sleevefas bestshown in Fig. 3. These points desirably may-be Y produced by prickingthe sleeve from its interior outwardly with an awl or other sharpinstrument toform small apertures surrounded by short tines or burrswhich, when the material is pressed down upon the sleeve at thebeginning of a lwinding operation, embed themselves'in the materiale-butnot sufhciently'far soY as to cause injury theretoand cause it to clingto the sleeve without slipping as the winding proceeds. Theseprojections are shown on an exaggerated scale in the enlarged 6ofragmentary view of Fig. 4. Because of the short interval required forYmakingY attachment of the material to the roll themachinemay beVmaintained in operation whilerone roll is being replaced by anotherinthe machine. After the end of the material has been attached to anewly inserted roll, theattendant gives the roll a spinto take up theslack material that has been playing from Y the machine, and the roll isthenzconnected to power to automatically lcontinue the winding.

From time to ltime as the projections upon a sleeve become worn and losetheir gripping power, the sleeve maybe stripped from the cylinder in themanner which'has already been described and a new sleeve may beintroduced upon the cylinder in its place. In this way it is notnecessary Vto withdraw a whole roll from service for renewing the pointsupon its circumference.

In Figs. 5 and 6 is shown another form of stock roll differing in minordetails from the stock roll which has just been described. In the formof roll shown in these figures, 1a represents themerte al cylinder and2a the sleeve corresponding to the cylinder and sleeve of Figs. 1 to 3.Instead of lproviding the cylinder with an axial tube of squarecross-section, as in the first-described formV of roll, in this roll theaxial tube 3a is of enlarged circular cross-section'and abuts` at itsends against the end plates `4a which latter are provided 'with squareopenings 4b corresponding to theshape of the mandrel upon which the rollis adapted to be supported. The intermediate por- 'Ytions ofthe tube 3aare supported in spaced plates ing the tube in concentrically 'spacedrelation withA reference tothe cylinder, said cylinder having alongitudinal slot upon its circumference, a sleeve encircling" thecylinderand provided with a roughened area for a substantial portionofits lengtlnsaid sleeve being split throughout its lengthalong a. lineparallel to its axis and pro-` vided with reversely-bent portionsadjacent its line of split extending'through the slot Vvin the cylinderandfengaging therinterior of the'cylin` der, and vsaidfplates v'havingclearance notches uponA their peripheries adjacent the slot so as topermit the Vlongitudinal 1 introduction upon and removal of .the sleevefrom the cylinder. e

Y2. A stock roll-constructed and designed for the windingVV ofrelatively wide lsheets of flexible material, comprising acylinderprovided with a' recess extending longitudinallyA thereof, and acylindrical sleeve encircling the cylinder and provided upon itscircumference with a. multitude of small projecting pointsV deflning aroughened area extending a substantial portion of the length of thesleeve, said sleeve being provided with a longitudinal slot, havinginturned edges adjacent the slot together forming with an inwardly pro#jecting key adapted to fit within the recess, said Y cylinder having atleast one oi.V its ends of Ya diameter not exceedingtheinterior diameterof :the sleeveso as to permitthe introduction upon and removal ,of thesleeve from theicylinder in a lengthwise manner.V Y

Y 35A stock roll constructed and designed for thewinding of relativelywide sheets of flexible material, "comprising a hollow metal cylinderprovidedwitha recess extending longitudinally cylinder and providedupon-'its circumference with a multitude of smallVK projecting pointsdeiining a roughened area extending a substantial portion of thelength'of the Sleeve, saidfsleeveV thereof, and al cylindricalsleeveencircling the Y being provided upon its inner circumference with aninwardly projecting key'adapted to t within therecess, said cylinderhaving bothof'its'ends of a diameter not exceeding the interior diameterof the sleeve so as to permitthe introduction upon and removal of thesleeve from the cylinder in a lengthwise manner.

4. A stock roll constructed and designed for the winding of relativelywide sheets of exible material, comprising a hollow metal cylinderprovided With a recess extending longitudinally thereof, and acylindrical sleeve of sheet material encircling the cylinder4 andprovided upon its circumference with a multitude of small projectingpoints dening a roughened area extending a substantially portion of thelength of the sleeve, said sleeve being split lengthwise and providedupon its inner circumference with reversely bent portions adjacent thesplit adapted to hook' over the Walls of the recess, said cylinderhaving at least one of its ends of a diameter not exceeding the interiordiameter of the sleeve so as to permit the introduction upon and removalof the sleeve from the cylinder in a lengthwise manner.

IRA H. J. ELLSWORTH.

